Snow City is Singapore's first indoor snow center located within the Science Centre Singapore area, beside the Omni-Theatre in Jurong East. Background The 3,000 square-meter center Snow City was buil
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8a1b61982753cebb956fad7f045e8ca6721922dd167d421451a562cdd64e6a. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d825c50-f4d8-4e95-9e99-b0f6f8ab15fa.json and https://artists.proofprofile.net/proofs/artist/2d825c50-f4d8-4e95-9e99-b0f6f8ab15fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).